Coal/biomass slag flow viscosity detection device and detection method
A technology of detection device and detection method, which is applied to measurement devices, flow characteristics, instruments, etc., can solve the problems of high content of ash alkali metal in biomass, slow temperature rise and fall, time-consuming, etc., and achieves easy operation of detection method and fast detection method. , a wide range of effects
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Embodiment 1
[0048] Embodiment 1 Coal / biomass slag flow viscosity detection device
[0049] refer to figure 1 , figure 1 Among them, 1 is an electric heating furnace, 2 is a flange, 3 is a corundum reaction tube, 4 is a gas flow meter, 5 is a reaction gas cylinder, and 6 is a protective gas cylinder. This embodiment provides a coal / biomass slag flow viscosity detection device, which includes a heater, a reaction tube, and a sample placement component.
[0050] Among them, the heater is an electric heating furnace, and the electric heating furnace is fixed around the reaction tube through a flange to heat the reaction tube; the electric heating furnace is heated by a silicon carbide rod, and the maximum temperature can reach 1550°C.
[0051] Among them, the reaction tube is made of corundum material, with an outer diameter of 80 mm, an inner diameter of 70 mm, and a length of 1.2 meters.
[0052] Wherein, the sample placing part includes a crucible and a corundum plate, and the sample to...
Embodiment 2
[0054] Example 2 Verification of each parameter
[0055] Experimental steps:
[0056] 1) Before the experiment, the furnace needs to be preheated to the set temperature under the protection of an inert atmosphere (99.99% argon). Accurately weigh the ash sample that needs to be tested, and compact it into an ash block with a size of 10mm long x 10mm wide x 2mm thick at a length of 50mm x 20mm x2 mm. Put the prepared ash sample into the corundum crucible and adjust the distance between the corundum plate and the crucible. The contact position reaches an inclination angle of 25°-90°.
[0057] 2) Put the crucible containing the ash sample into the tray with a handle, and slowly push it into the constant temperature zone of the furnace. The advancing steps are divided into 3 stages. The ash sample is sent to the temperature range of 600 degrees for one minute, then pushed to 1000 degrees for one minute, and finally pushed to the constant temperature range of 1100-1400 degrees. S...
Embodiment 3
[0085] Embodiment 3 slag flow length and viscosity relation
[0086] Weigh 0.2g of four ash samples of Ash 1, Ash 2, Ash 3, and Ash 4, the temperature of the third stage is: 1400°C, the residence time is 40min, and the reducing gas is 1% CO in N 2 , the gas flow rate is 1L / min, and the relationship between the slag flow length, inclination angle and fluidity is obtained from the test and calculation, as shown in Table 6 below, and the curve is shown as Figure 10 shown.
[0087] Table 6 Relationship between slag flow length, inclination angle and fluidity
[0088]
[0089]
[0090] Note: In Table 6, X represents fluidity (the reciprocal of viscosity), Y represents the slag flow length (mm / g) of Ash 1, Ash 2, Ash 3, Ash 4 four ash samples.
[0091] According to the calculation and conversion of the fluidity, the relationship between the natural logarithm of the slag flow length, the inclination angle and the natural logarithm of the viscosity is shown in Table 7, and th...
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